InChI=1S/C19H22O7S/c1-5-19(3,4)15-9-14-8-13(16(20)10-17(14)26-18(15)21)7-6-12(2)11-25-27(22,23)24/h5-6,8-10,20H,1,7,11H2,2-4H3,(H,22,23,24)